Comet components. Collection of ingredients thought to make up a comet. Observations made using NASA's Spitzer Space Telescope and finds excavated from comet Tempel 1 by the Deep Impact mission are helping astronomers to build a 'recipe' for a comet. From left to right: on plates - ice and dry ice (frozen carbon dioxide); in measuring cups - olivine,smectite clay,polycyclic aromatic hydrocarbons,spinel,metallic iron; on table - the silicate enstatite,the carbonate dolomite,and the iron sulphide marcasite | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / R. Hurt (SSC) / JPL-Caltech / NASA |
Taille de l’image : | 3637 px × 2418 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |